Figure 8. Detection of the burst words on the paid use of state-owned forest resources.
3. Conclusions
In this research, 451 documents on the paid use of state-owned forest resources in the CNKI database from 2008 to 2021 were selected as samples, and statistical analysis software, such as BICOMB, SPSS, UCINET, and CiteSpace, was used to analyze the experiment. This research first identified the general statistics, the authors, the funding, the institutions, and the journals and then constructed a co-occurrence matrix and a dissimilarity matrix of high-frequency keywords. In addition, cluster analysis, MDS, and co-occurrence network analysis were carried out. In addition, time was also taken into account. A timeline visualization map was combined with the detection of burst words, and the following conclusions were drawn:
(1) In terms of the basic feature analysis, this research finds that the number of papers is rising, and high-yield authors account for 29.27% of the total documents. Core author groups with a certain influence have been formed, but the research force is relatively scattered. In addition, the support of provincially funded projects accounts for the highest proportion, reaching 43.57%. Northeast Forestry University and Beijing Forestry University pay more attention to this field, and the distribution density of journals in the core zone is 13.64. Moreover, there is a relatively stable number of journals in this research field.
(2) According to the results of keyword cluster analysis and MDS, the research can be divided into three topics: The development status of paid use, forest tourism and forest health, and the under-forestry economy (under-forestry planting, breeding, and product processing). At present, state-owned forest resources in China have not established a paid-use system or a supervision mechanism reflecting market supply and demand and resource value. Therefore, the property rights structure of state-owned forest resources needs to be clearly defined. A scientifically based paid-use system and ex-post supervision mechanism should be established, to promote reform. The government should actively develop forest tourism and forest health projects that meet the needs of different consumers and promote the transformation of resources into benefits. Furthermore, according to the differences in resource endowments in different regions, targeted strategies should be implemented to improve the efficiency of understory economic development and the comprehensive benefits to the economy, society, and ecology.
(3) According to the analysis results of the co-occurrence network, keywords such as “state-owned forest farms”, the “under-forestry economy”, “forest tourism”, “ecological product value”, and “forest health” are in the core position, and they are considered important in this field. According to the timeline visualization map and the detection of burst words, the intermediary centralities of “state-owned forest farms” and the “under-forestry economy” are the highest, followed by “forest tourism” and “forest experience”, etc. With time and the promulgation of policies, the research focus in this field has gradually shifted from “forest assets” and “forestry economics” to “ecotourism” and “forest health”. The research on the development status of paid use and “forest carbon sequestration” is a technical branch worthy of attention.
Research contents can be divided into the following five points. Firstly, the research of state-owned forest resources is not limited to forest tourism, forest health, and the under-forestry economy. Moreover, whether the value conversion of ecological products, carbon sink trading, and ecological security can be achieved through quantification is worth discussing in future research. Secondly, the lack of an efficiency evaluation system for the paid use of state-owned forest resources makes it impossible to compare and evaluate its reform effect, so it is difficult to produce a more efficient model. The construction of an efficient evaluation system should have more attention paid to it in the future. Thirdly, an evaluation system of state-owned forest resources assets needs to be established, and a fair evaluation of the paid use of forest resources is required. How a pricing model of forest resource assets can be constructed to fairly evaluate the right to use forest land is a practical problem that needs to be solved. Fourthly, property rights about state-owned forest resources are not clearly defined. There are multiple leaders in the management system, and the hierarchy of power and responsibility is not clear. The departments in charge of state-owned forests are burdened with administrative functions. Simultaneously, they are responsible for ownership management and supervision. Furthermore, how ownership and use rights can be separated is worthy of investigation. Finally, the state-owned forest resource market is not mature, and a developed market system has not been fully formed. Thus, the role of the market and policies in promoting the development of the paid use of forest resources, as well as how the economic, social, and ecological benefits of the state-owned forest resource management in both government and the market can be maximized, will remain areas of research focus for a considerable amount of time. In conclusion, research on the paid use of state-owned forest resources in China is an important research field.